3130001220 has 48 divisors (see below), whose sum is σ = 8796388608. Its totient is φ = 831582720.

The previous prime is 3130001197. The next prime is 3130001243. The reversal of 3130001220 is 221000313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3130001197) and next prime (3130001243).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3130001196 and 3130001205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79989 + ... + 112508.

It is an arithmetic number, because the mean of its divisors is an integer number (183258096).

Almost surely, 2^3130001220 is an apocalyptic number.

3130001220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3130001220 is an abundant number, since it is smaller than the sum of its proper divisors (5666387388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3130001220 is a wasteful number, since it uses less digits than its factorization.

3130001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192780 (or 192778 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3130001220 is about 55946.4138260890. The cubic root of 3130001220 is about 1462.7883817323.

Adding to 3130001220 its reverse (221000313), we get a palindrome (3351001533).

The spelling of 3130001220 in words is "three billion, one hundred thirty million, one thousand, two hundred twenty".